Network File System Version 4 (nfsv4)
-------------------------------------
Charter
Last Modified: 2006-03-24
Current Status: Active Working Group
Chair(s):
Brian Pawlowski
Spencer Shepler
Transport Area Director(s):
Magnus Westerlund
Lars Eggert
Transport Area Advisor:
Lars Eggert
Mailing Lists:
General Discussion:nfsv4@ietf.org
To Subscribe: https://www1.ietf.org/mailman/listinfo/nfsv4
Archive: http://www.ietf.org/mail-archive/web/nfsv4/index.html
Description of Working Group:
The objective of this working group is to advance the state of NFS
technology by producing specifications to extend the original NFS
Version 4 work (RFC 3010) to provide additional capabilities, as
described below.
o NFS version 4
Advance the protocol along the standards track, coordinating the
development of test suites to provide a high level of implementation
quality. The ONC RPC standards that NFSv4 references must also be
advanced. This includes work to make NFSv4 and the underlying ONC RPC
protocol compatible with IPv6. Specifically, we will advance RFC
3010, RFC 1831, RFC 1833 and RFC 2203 to Draft Standard. The working
group will help advance related security RFCs, specifically through
the definition of a method to advance APIs.
o Replication and Migration
The original working group defined a mechanism for NFS clients and
servers to support replication and migration of data transparently
to an application. Left undefined in the initial work was the
server back end migration and replication mechanism. The working
group will produce a draft submission of a replication/migration
protocol that supports NFS Version 4 clients - needed to create and
maintain replicated filesystems as well as migrating filesystems
from one location to another - and servers for consideration as
Proposed Standard.
o Management
The working group will produce a draft submission for consideration
as Proposed Standard of a management MIBs to provide better
management and administration capabilities for NFS and ONC RPC.
o Minor Versions
NFS Version 4 contains within it the capability for minor versioning.
Some discussions within the working group suggest addressing
additional requirements over the original charter. The WG will work
to identify additional requirements for NFSv4 and determine if they
are appropriate and worthwhile for a minor version. This work may
lead to proposals for additional work items. If it does a specific
proposal to add these work items to the charter will be forwarded to
the IESG and IAB.
o RDMA/RDDP enabling
The performance benefit of RDMA/RDDP transports in NFS-related
applications, by reducing the overhead of data and metadata
exchange, has been demonstrated sufficiently such that the
working group will pursue in parallel enabling NFS and RPC over
the transport defined by the RDDP working group. The WG will
restrict its initial activities to defining the problem
statement and specifying the requirements for possible
extensions to RPC and NFS (in the context of a minor
revision).
Goals and Milestones:
Done Issue strawman Internet-Draft for v4
Done Submit Initial Internet-Draft of requirements document
Done Submit Final Internet-Draft of requirements document
Done AD reassesses WG charter
Done Submit v4 Internet-Draft sufficient to begin prototype
implementations
Done Begin Interoperability testing of prototype implementations
Done Submit NFS version 4 to IESG for consideration as a Proposed
Standard.
Done Conduct final Interoperability tests
Done Conduct full Interoperability tests for all NFSv4 features
Done Update API advancement draft
Done Form core design team to work on NFS V4 migration/replication
requirements and protocol
Done Submit revised NFS Version 4 specification (revision to RFC
3010) to IESG for consideration as a Proposed Standard
Done Strawman NFS V4 replication/migration protocol proposal
submitted as an ID
Mar 2003 ADs to submit API advancement internet draft as informational
RFC (needed to advance GSSAPI to Draft Standard to allow
advancement of NFS Version 4)
Mar 2003 Continued interoperability testing of NFS Version 4
Apr 2003 Internet draft on NFS V4 migration/replication requirements
Apr 2003 AD review of NFS V4 migration/replication requirements draft
Apr 2003 Creation of internet draft on ONC RPC MIB
Apr 2003 Revision of internet draft on NFS MIB
Apr 2003 Draft problem statement I-D for NFS/RPC/RDDP submitted
May 2003 Document full Interoperability tests for all NFSv4 features
Jun 2003 Depending on results of AD review of NFS Version 4
migration/replication requirements document, review scope of
task
Jun 2003 Submit related Proposed Standards required by NFS Version 4 for
consideration as Draft Standards to IESG - RFCs 1831, 1833,
2203, 2078, 2744, RFC 1964, & 2847
Jun 2003 Draft requirements document I-D for NFS/RPC/RDDP submitted
Jun 2003 Submit ONC RPC and NFS MIBs to IESG for consideration as
Proposed Standards
Jun 2003 Submit an NFS V4 migration/replication protocol to IESG for
consideration as a Proposed Standard
Jun 2003 Submit report on results of NFS version 4 RFC interoperability
testing
Jul 2003 AD review of NFS/RPC/RDDP progress and charter
Jul 2003 Interoperability tests of NFS V4 migration/replication
Aug 2003 Submit revised NFS Version 4 Proposed Standard for
consideration as Draft Standard to IESG
Internet-Drafts:
Posted Revised I-D Title
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May 2003 Dec 2006
RPC: Remote Procedure Call Protocol Specification Version 2
Feb 2004 May 2007
NFS RDMA Problem Statement
Jul 2004 May 2007
RDMA Transport for ONC RPC
Jul 2004 May 2007
NFS Direct Data Placement
Oct 2005 Mar 2007
NFSv4 Minor Version 1
Jan 2006 Mar 2007
pNFS Block/Volume Layout
Jan 2006 Mar 2007
Object-based pNFS Operations
Request For Comments:
RFC Stat Published Title
------- -- ----------- ------------------------------------
RFC2623 PS Jul 1999 NFS Version 2 and Version 3 Security Issues and the NFS
Protocol's Use of RPCSEC_GSS and Kerberos V5
RFC2624 I Jul 1999 NFS Version 4 Design Considerations
RFC3010 PS Dec 2000 NFS version 4
RFC3530 PS May 2003 Network File System (NFS) version 4 Protocol
RFC4506Standard May 2006 XDR: External Data Representation Standard